Method:
Mix all dry ingredients in a bowl.
In a large bowl, beat oil, sugar and egg. Add mashed banana and vanilla essence.
Add flour alternately with buttermilk and mix well. Add chocolate chips and mix.
Bake in a preheated oven at 150 degree Celsius for 20-25 minutes. It’s ready when a light brown colour forms on top of the cake.
Cool cake in the pan for 10 minutes and turn into a rack to cool.